Cisco Nexus 5000 Series USB Driver Denial of Service VulnerabilityCisco Security AdvisoryEmergency Support:
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Email: psirt@cisco.com
Support requests that are received via e-mail are typically acknowledged within 48 hours.Cisco product security incident response is the responsibility of the Cisco Product Security Incident Response Team (PSIRT). The Cisco PSIRT is a dedicated, global team that manages the receipt, investigation, and public reporting of security vulnerability information that is related to Cisco products and networks. The on-call Cisco PSIRT works 24x7 with Cisco customers, independent security researchers, consultants, industry organizations, and other vendors to identify possible security issues with Cisco products and networks.
More information can be found in Cisco Security Vulnerability Policy available at http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.htmlcisco-sa-20151204-nexusFinal1.01.02015-12-04T15:11:42Initial public release.2015-12-04T08:00:002015-12-04T15:11:42TVCEA vulnerability in the USB driver for Cisco Nexus 5000 Series Switches could allow an unauthenticated, local attacker to cause a denial of service (DoS) condition due to a kernel crash.
The vulnerability is due to insufficient handling of USB input parameters. An attacker could exploit this vulnerability by sending crafted USB parameters to be processed by the kernel of an affected device. A successful exploit could allow the attacker to cause a DoS condition on the affected device.
Cisco has not released software updates that address this vulnerability. There are no workarounds that mitigate this vulnerability.
This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151204-nexus["http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151204-nexus"]Cisco Nexus 5000 Series Switches running Cisco NX-OS Software Release 5.2(9)N1(1) are vulnerable.No other Cisco products are currently known to be affected by this vulnerability.There are no workarounds that mitigate this vulnerability.When considering software upgrades, customers are advised to consult the Cisco Security Advisories and Responses archive at http://www.cisco.com/go/psirt["http://www.cisco.com/go/psirt"] and review subsequent advisories to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to upgrade contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy[http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
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http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151204-nexusCisco Nexus 5000 Series USB Driver Denial of Service VulnerabilityCisco NX-OS Software 5.2(9)N1(1)Cisco Nexus 5000 Series USB Driver Denial of Service VulnerabilityCSCus89408A vulnerability in the USB driver for Cisco Nexus 5000 Series Switches could allow an unauthenticated, local attacker to cause a denial of service (DoS) condition due to a kernel crash.
The vulnerability is due to insufficient handling of USB input parameters. An attacker could exploit this vulnerability by sending crafted USB parameters to be processed by the kernel of an affected device. A successful exploit could allow the attacker to cause a DoS condition on the affected device.CSCus89408CVE-2015-6394CVRFPID-2120734.94.9AV:L/AC:L/Au:N/C:N/I:N/A:C/E:H/RL:U/RC:CThere are no workarounds that mitigate this vulnerability.http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151204-nexusCisco Nexus 5000 Series USB Driver Denial of Service Vulnerability